دورية أكاديمية
[Clinical calibration dosimetry in JSMP-01: measurements using Farmer-type cylindrical ion chambers.].
| العنوان: | [Clinical calibration dosimetry in JSMP-01: measurements using Farmer-type cylindrical ion chambers.]. |
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| المؤلفون: | Araki F; Department of Radiological Technology, Kumamoto University School of Health Sciences, Kumamoto 862-0976, Japan. f_araki@kumamoto-u.ac.jp., Kumagai K, Yoshiura T, Oura H, Tachibana M, Moribe N, Tajima H, Yoshida A, Kido T |
| المصدر: | Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics [Igaku Butsuri] 2005; Vol. 25 (3), pp. 104-13. |
| نوع المنشور: | Journal Article |
| اللغة: | Japanese |
| بيانات الدورية: | Publisher: Nihon Igaku Butsuri Gakkai Country of Publication: Japan NLM ID: 101125977 Publication Model: Print Cited Medium: Print ISSN: 1345-5354 (Print) Linking ISSN: 13455354 NLM ISO Abbreviation: Igaku Butsuri Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Chiba-shi : Nihon Igaku Butsuri Gakkai, 2000- |
| مواضيع طبية MeSH: | Farmers* , Radiometry*, Calibration ; Electrons ; Humans ; Photons ; Radiotherapy, High-Energy ; Water |
| مستخلص: | The Japan Society of Medical Physics (JSMP) Task Group published Standard dosimetry of absorbed dose in external beam radiotherapy (Standard dosimetry 01) as a new high-energy photon and electron dosimetry protocol in 2002. In this study, we present Standard dosimetry 01 as the JSMP-01 protocol for the convenience of users. This protocol is based on using an ion chamber having a (60)Co absorbed dose to water calibration coefficient, N(D,w), which is calculated from a (60)Co exposure calibration coefficient, N(c). We present dose comparisons between a reference chamber and various Farmer-type cylindrical chambers with different wall materials. The absorbed dose to water was compared at the calibration depths of 5 cm for a (60)Co beam, 10 cm for photons, and d(c) = 0.6 R(50) - 0.1 (cm) for electrons according to JSMP-01. The JARP chamber in the Kyushu Regional Center which meets third-order standards in Japan was used as the reference chamber. The absorbed dose to water for the Farmer-type chambers determined according to JSMP-01 agreed with that for the JARP chamber within 1% for photon and electron beams. The doses obtained by JSMP-01 and the Japan Association of Radiological Physics protocol (JARP-86) were also compared for photon and electron beams. For the Farmer-type chambers with photon beams, JSMP-01 results were up to 1.5% higher than JARP-86 results. For electron beams JSMP-01 results were higher than JARP-86 results by 1.3-2.8%. |
| المشرفين على المادة: | 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20051224 Date Completed: 20160423 Latest Revision: 20181203 |
| رمز التحديث: | 20231215 |
| PMID: | 16373986 |
| قاعدة البيانات: | MEDLINE |
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